/** @file
 * @author Edouard DUPIN
 * @copyright 2018, Edouard DUPIN, all right reserved
 * @license PROPRIETARY (see license file)
 */

import { Injectable, Output, EventEmitter } from '@angular/core';

export enum UserRoles222 {
    admin = 10000,
    user = 1,
    guest = 10
}

@Injectable()
export class SessionService {
	private tokenJwt = null;
	public sessionId = null;
	public userLogin = null;
	public userAdmin = null;
	public userEMail = null;
	public userAvatar = null;
	public userId = null;

	@Output() change: EventEmitter<boolean> = new EventEmitter();

	constructor() {

	}

	/**
	 * @brief Create a new session.
	 *
	 * @param sessionId -
	 * @param userId -
	 * @param userLogin -
	 * @param userEMail -
	 * @param userAdmin -
	 * @param userAvatar  -
	 */
	create(sessionId,
	       userId: string,
	       userLogin: string,
	       userEMail: string,
	       userAdmin: boolean,
	       userAvatar: string) {
		console.log(`Session Create: userId=${userId} userLogin=${userLogin} userEMail=${userEMail} userAdmin=${userAdmin} userAvatar=${userAvatar} sessionId = ${sessionId}`);
		this.tokenJwt = undefined;
		this.sessionId = sessionId;
		this.userId = userId;
		this.userLogin = userLogin;
		this.userAdmin = userAdmin;
		this.userEMail = userEMail;
		this.userAvatar = userAvatar;
		this.change.emit(true);
	}

	/**
	 * @brief destroy the current session.
	 */
	destroy() {
		console.log('Session REMOVE');
		let last = this.sessionId;
		this.sessionId = null;
		this.tokenJwt = undefined;
		this.userId = null;
		this.userLogin = null;
		this.userAdmin = null;
		this.userEMail = null;
		this.userAvatar = null;
		this.change.emit(false);
	}
	setToken(jwt: string) {
		this.tokenJwt = jwt;
	}
	getToken(): string | undefined {
		return this.tokenJwt;
	}
	islogged() {
		return this.sessionId !== null;
	}
	hasRight(type) {
		if(type === UserRoles222.admin) {
			// sometime needed...
			return this.userAdmin;
		}
		if(type === UserRoles222.user) {
			// is connected ==> is user
			return this.sessionId !== null;
		}
		if(type === UserRoles222.guest) {
			// all the other ... maybe unneeded
			return true;
		}
		return false;
	}
	hasNotRight(type) {
		return !this.hasRight(type);
	}
	getLogin() {
		return this.userLogin;
	}
	getAvatar() {
		return 'assets/images/avatar_generic.svg';
		/* This is not ready : 
		if(this.userAvatar === false) {
			return 'assets/images/avatar_generic.svg';
		}
		return this.userId;
		*/
	}
}